Corn-planter check-rower



(Model.)

G. W. BROWN.

OUEN PLANTER CHECK ROWER.

No. 278,500. Patented May 29,1883.

' To all whom @t may concern I l UNITED STATES y PATENT OFFICEo GEORGE W. BROWN, F GALESBURG, ILLINOIS.

SPECIFICATION forming part `of Letters Patent No. 278,500, dated May 29, 1883.

Application filed January 22, 1883. (Model.) i

`Be it known thatI, GEORGE W. BROWN, a citizen ofthe United States, residing at Galesburg, in the county of Knox and State ,of Illiv nois, have invented certain new and useful Improvements in Corn-Planter Check Bowers; and I do hereby declare thefollowin g to be a i .t full, clear, and exact description of the inven` y tion., such as will enable" others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyingdrawings, and to letters or figures of refery ence marked thereon,which form a part of this z` specification.` t

t i that class in which the actuating mechanism In the use of corn-planter checkrowers of is a tappet-wire stretched across the field and I `adapted to acton a forked lever or levers, and

M l. especially in that class thereof in which the forked lever swings in a horizontal plane, it

.is found that the tappets will sometimes' escape from the forked lever before said lever has made its full throw and before it has given a full Vthrow tothe seed-slides of the planter; and the i to the forked lever and adapted to retain the object of this invention is to provide means for y insuring the contact of the tappets with the forked levernntil said `lever has made a full ,y throw, and then permitting the tappets to escape freely from said lever; and to this end thisinventionconsists,mainly,in alatch hinged Ytappets in contact with the forked lever and re lease the tappets therefrom at properintervals.

The invention further consists in Sconstructions and combinations hereinafter described.

In the accompanying drawings, which illustrate my invention, Figure lis a top plan. Fig.

at forward end of its throw.

The drawings show myimprovementapplied to one of that class of checkfrowers in which a bar, A, located transversely on the planter, has a similar set of check-row devices secured to each of its ends, only one set of which is shown.

B is a head secured transversely to and on the bar A, and provided at its front end with guide-pulleys C, and at its rear'end with guidepulleys D, for the tappet-wire E.

, i F is the forked lever, elbow-shaped and-journaled at j'. The outer end ofthe lever F is forked, and its inner end ishinged orjournaled `to a rod, G, which extends tol the seed'sldes of the planter. (Not shown.)

H is a stop for the forked lever. f

I is a spring for returning the forked lever after it has been swung rearward by the action ofthe tappets e of the wire E.

The foregoing parts described by letter are parts of an ordinary clieck-rower, and need not be described more fully herein, as they may be of ordinary construction, except as hereinafter described.

IVI is a latch hinged at m, near one ol' its ends, to the forked lever F, so that it may swing in a vertical plane. Near its outer end the latch is curved upwardly to form a shoulder', m', and thence outwardly it slopes downwardly on its upper side to form a face, on", for faoilitatin g removing and replacing the wire in thefork.` When the latch M is in its closed position, as shown at Fig. 3, its rear end or heel, mm', rests on a lug, j", which projects 4from the side of the forkedlever, and the point on' of the latch is so near the upperlimb of the forked lever as to retain a tappet ein the fork, but not so near as to preventinsertingthe wire ofthe tappet-wire laterally therein over the face m and withdrawing it therefrom in same manner, as is necessary at the ends of the rows bein g planted. The upper faceof the head B is straight from b to b', and from b is cutaway in a slope, b, rearwardto forma face', l, in a lower plane than b b. During all the forward part of the throw of the forked lever E the latch M is held up in its closed position, as

shown at Fig. 3, by the faces b b; but when it f reaches the slope b inv its rearward throw the heavier outer end of the latch will drop by its own gravity, as shown atFig.2. As thespring returns the forked lever forward, the sloping face b" will raise the latch again to the slideA way b b.

At Fig. 1 the forked lever is shown as having made a partial throw rearward by the action of one ofthe tappets e, and at same gure the wire E, curved outwardly, shows the tendency of the wire to escape from the forked lever, which is prevented by the tappet e coming in contact with the shoulder m of the latch. When the forked lever completes its throw the latch will lower on the incline b", as already described, and permit the tappet to escape from the forked lever, which will then be returned forward by the spring. As shown, the latch Having thus described my invention, what I claim as new, and desire tofsecure by Letters Patent, is-

1. In a corn-'planter check-rower, in combi. nation with a swinging forked lever and a tappet-wire, a latch hinged to the forked lever and adapted to retain the tappets in contact with the forked lever until it completes its throw, substantial] y as and for the-purpose specified. 2. In combination with the forked lever and tappet-wire, the latch M, hinged to the forked lever, and provided with a shoulder, m', and facem, substantially as and for the purpose specified. i

3. In combination withthe forked lever and tappet-wire, the gravitating latch,adapted to operate substantially as and for the' purpose specified. p Y Y v i d. i l

4. In combination with the forked lever and latch hinged thereto, the head B, havinga face, bb, with a depression at its rear end,whereby it may retain the latch to hold the tappets during part of its throw and allowr it to fall to release them at the end of each throw, substan-I tially as and for the purpose specified.

5. In combination with the swinging forked lever and tappet-wire, the latch M, wit-h a heel end, mm', and the lugf, with which it coacts, substantially as and for the purpose specified.

6. In combination with the tappet-wire and swinging forked lever having a lug,f, the latch M, constructedfsubstantiallyas described, for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE vv.y BROWN.

Witnesses:

J. DoUGHER'rY, I. S. PERKINS. i 

